Table 5. Visual acuity in the two older age-groups of our normative sample.

All visual acuities are in logMAR, mean ± SD. Children with visual acuity worse than 0.2 logMAR in either eye, or an interocular visual acuity difference >0.2 logMAR, were excluded from the normative sample.

Age	6 & 7 years old	10 & 11 years old
Number of children	247	190
Monocular acuity in better eye	0.047 +/- 0.067	-0.012 +/- 0.084
Monocular acuity averaged across eyes	0.07 +/- 0.064	0.01 +/- 0.081
Interocular acuity difference	0.0033 +/- 0.062	0.011 +/- 0.067
Acuity in left eye	0.068 +/- 0.073	0.0049 +/- 0.087
Acuity in right eye	0.071 +/- 0.069	0.016 +/- 0.088